Aiotob-fbame



D. H. FRIEND.

MOTOR FRAME.

APPLICATION FILED AUGJ. I9Ie.

1,318,744. I Patented OCI. 14,1919.

2 SHEETS--SHEET l.

ii' I" Il MOTOR FRAME.

APPLICATION FILED AUG-7 |9|6 Patented Oct. 14, 1919.

2 swims-SHEET 2.

I n @eef/d6 UNITED sTATEs .PATENT oFEIoE.

' DAVID II.- FRIEND, oFNoItTII INDUSTRY, oHIo,

MOTOR-FRAME.

Specification of Letters Patent. A l1:2'11391111311 Oct. 14, 1919.

Application led August 7, 1916. SeriaI No. 113,469.

To aZZfwtom t may concern:

Be it known that I, vDAVID H. FRIEND, a citizen of the United States,residing at North Industry, in the county of Stark and 5 State of Ohio,have kinvented certain new and useful Improvements in Motor-Frames,

of which the following is a specification.' v The invention relates toa' frame forfelectric motors, and the object of the improve of the motorcase uponwhich all the parts of the motor can be independently mountedand secured beforev the cover of the case is placed over the same; whichis specially desirable inv small size motors. ,I y This object of theinvention, and ancillary advantages of construction and arrangement, areattainedfby locating the commu tator at the end of the armature which is20, adjacent to the base plate; by formin or securing a supporting wallupon the ase plate around the mam bearing'of the arv'mature shaft byforming or securlng tubular supports for the brush holders upon saidsupporting wall; and .also.by forming or ,securing supporting posts uponythe base plate for carrying the field core of the motor.

A preferred embodiment (3f the invention' is illustrated as applied to amotor for a drawings, formingpart hereof, in which- Fi Fi. 2, a plan'section of the same as on line 2f-2, Fig. 1; Fig.'3, a detachedenlarged sectional view ofthe motor frame arranged for a ball, bearing;and

Fig. 4, a vertical section of a motor showing the use of ordinaryjournal bearings.

Similar numerals refer to similar parts throughout the drawings. j Themotorv frame includes a base plate 1 having an axial aperture 2 thereinfor the shaft 3 of the armatureA, a tubular bearing post 5 or 5a on thebase plate around the aperture 2, a cylindric supporting wall 7 forminga bearing chalmbervS around theloearment is to provide a fraine on thebase'plat'ej vacuum cleaner fan, in the" accompanying ure 1 is avertical section offthe motor as by securingthe field core 12 on the topVmotor parts may be mountedand secured, A

of the posts 11 by means of the screws 13 l.

enteringthe apertures 14 in the tops of the posts, by securing the brushholders' 10 in ing post, tubular supports 9 for the brush d.holdersl()extending radially from the-bear- A 50 ing Wall, and supporting posts 11extending upward from the base plate for the field core 12 of the motor;the base plate being dicular to the axis of the shaft.

described, which located or arranged transverse or lperpen-I Upon theframe thus may beuformed in an integral structure/the.

the' tubular supports 9 by means of the set screws 15, and-by mountingthe armature 4 and the commutator'l on the shaft 3 and inserting the,armature, ycommutator end first, through the upper end of. the lield,

thus bringing the commutator betweenthe brushes 17, and the shaft 3,-inthe main bearing, which may be either in the form of the ball bearing18. shown in Figs. 1,

18a shown in Fig.- 4. y A suitable bearing 19 6r 19a is provided at theupper end ofthe shaft, and after the 4parts are thus assembled andsecured together, the bell shaped cover 20 may be placed over thecomplete motor thus formed, said cover having a central aperture 21 or21a for receiving the upper bearing.; and the cover section 'of the casemay be secured 'to the base plate 1 ,thereof by means of the bolts 22extending upward from the base plate and screwed into the pendentkbosses 23 formed in the/ cover section. 'The radially .extendingvtubular duct 24 may be formed on the supporting wall. 7, and acorthereafter Ithe cover. section of the case may be placed thereover orremoved therefrom Awithout disturbing any art of the motor 2 and 3, orthe" ordinary journal bearing j per se; and thateach o the several partsof the motor can be detached for repair or replacement withoutdisturbing any other 4 motor part.

I claim 1. A motor frame co j rising valower supporting base havi a'bearing, an armature supportedont e bearing and pro. vided with acommutator adjacent to the.A

supporting base, said base having means for the support of a fieldelement and also having 'brush supports independent ofthe fieldsupporting means.

2. A -motor frame comprising a horizontal base plate, a field corethereon, a suplio porting wall around the perpendicular axis l of theplate, radia'l brush supports onthe Wall, and post supports for thefield oore extending upward from@ the base plate.

3. A motor including a shaft, an armature on the shaft, a base plateperpendicular to the shaft, a field core and brush holders mounted onthe base plate independent of each other, a bearing on the plate for oneend of the shaft, and a cover on the base 10 plate freely inelosing allthe motor parts and having a bearing for the other end of the Sha'ft.

4. A motor including a base plate having a central aperture and asupporting Wall around the aperture, a main bearing Within thewall,`rada'l supports on the Wall, post ksupports on the base plate,brushes secured in the radial supports, a field core secured on theposts, a shaft extending through the bearing, and an armature Within thefield core and. a commutator between the brushes on the shaft.

DAVID H. FRIEND.

